Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: DICKEYBIRD on May 04, 2017, 10:41:14 AM
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I haven't jumped into 3D printing yet but keep running into inexpensive cool items like this: http://www.ebay.com/itm/Geeetech-3D-Touch-Auto-Bed-Leveling-Sensor-for-Prusa-3D-Printer-/322501978412?hash=item4b169da92c:g:0nMAAOSwGtRXw~nk
Wouldn't one of those things be useful for setting tools on a mill or router with existing Mach3 software?
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Cool gadget indeed, thanks for sharing.
Tweakie.
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Ooh, nice,
wonder if that could be adapted to work on a plasma cutter for top-of-material sensing????
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Won't work.
The difference is additive versus subtractive machining.
The bit on the CNC would be cutting on an angle whereas the extruder on a printer places layers down so the angle doesn't make enough of a difference to matter.
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Won't work.
I am sure it will.
The difference is additive versus subtractive machining.
Not sure that has anything to do with bed leveling or plasma top of material sensing.
I think you may need to explain your answer in a bit more detail.
Tweakie.
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Won't work.
I am sure it will.
The difference is additive versus subtractive machining.
Not sure that has anything to do with bed leveling or plasma top of material sensing.
I think you may need to explain your answer in a bit more detail.
Tweakie.
Go ahead and try it.
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Won't work.
I am sure it will.
The difference is additive versus subtractive machining.
Not sure that has anything to do with bed leveling or plasma top of material sensing.
I think you may need to explain your answer in a bit more detail.
Tweakie.
Go ahead and try it.
its a surface probe, i can't see any issue with the type of machining?
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The intended purpose of the sensor is not to compensate for an out of level table or z-axis. It would be used as a simple z-axis probe input to accurately locate the work surface or the tool tip for cheap. Taking advantage of cheap as chips Chinese 3D printer technology. :)
Me being me, I will need help making it play nice with Mach if I decide to try one. I guess it will require a macro or the like? :-[
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It might need some interfacing - the blurb mentions servo input, pwm, solenoid etc, I cant find much out about the internals or the sensing method used but if the repeatability is anywhere near as good as stated it must be worth a try i think.
Also, being for 3d printers which are generally lightly built, i would presume the surface contact pressure is very low which would be good for TOM sensing in a plasma cutter :)
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Of course it will work. Its just a fancy limit switch. You can do probing with any device that can provide a switching function upon sensing a surface.
The 3D printing community is quickly moving to non-contact proximity sensors for print bed zeroing, bed leveling, and now XY Axis skew correction (corrects for X and Y axis not perpendicular).
Your choice of sensor (or switch) depends on the accuracy you need. If you go with non-contact, there are many different types depending on the sensing technology and accuracy needed (i.e. Inductive, capacitive, etc.)
Below are a couple of examples.
http://www.ebay.com/itm/LJ12A3-4-Z-BX-Inductive-Proximity-Sensor-Switch-NPN-DC6-36V-3D-Printer-CNC-/122184058393?hash=item1c72bcc619:g:rG8AAOSwNRdYAyiX (http://www.ebay.com/itm/LJ12A3-4-Z-BX-Inductive-Proximity-Sensor-Switch-NPN-DC6-36V-3D-Printer-CNC-/122184058393?hash=item1c72bcc619:g:rG8AAOSwNRdYAyiX)